What are the standards for wire harness ties? What are the specific standards?

The wire harness tie standard refers to the specification of the tie methods and requirements for wire harnesses in the installation and fixing process. Its purpose is to ensure that the wiring harness has good mechanical strength during use, good wiring harness layout and fixing effect, as well as to avoid interference between the wiring harness and failure. Here are some common wire harness tie standards: 1. IPC/WHMA-A-620: This is the International Electronics Assembly Industry Association (IPC) and the Wire Harness Manufacturers Association (WHMA) jointly issued by the wire harness assembly standard. The standard covers all aspects of harness design, manufacturing, installation and maintenance, including harness tie-down requirements.2. ISO 6722: This is one of the automotive wiring harness standards issued by the International Organization for Standardization (ISO). It specifies the technical requirements for automotive wiring harnesses, including the layout, fixing and protection of wiring harness ties.3. SAE J1939: This is a communication protocol standard issued by the Society of Automotive Engineers (SAE) for commercial vehicles. The standard also contains requirements for wiring harness ties to ensure the reliability and safety of the wiring harness in the vehicle's operating environment.4. DIN 72551: This is one of the automotive wiring harness standards issued by the German Institute for Standardization (DIN). It specifies the technical requirements and test methods for wiring harnesses, including the requirements and layout of wiring harness tie-downs.5. UL 486A-486B: This is a standard issued by the U.S. Safety Laboratory (UL) for wires and connectors. Although it primarily covers connector specifications, it also mentions some requirements for harness tie-downs. These standards typically cover requirements for the layout, spacing, selection and use of fixtures, and insulation protection of wire harness ties. Among them, for the layout of wire harness tie wires, it is usually required to maintain a certain spacing between wire harnesses to avoid interference and short circuits. The selection and use of fixings should comply with relevant standards to ensure that the harness is firmly fixed to the vehicle and will not be loosened by vibration or other external forces. At the same time, insulation protection of the wiring harness ties is also very important to prevent the harness from being affected by mechanical damage or environmental factors. When designing and installing the wiring harness, the layout and fixing method of the wiring harness tie wires should be reasonably planned with reference to the applicable standards and in conjunction with the specific vehicle type and usage environment. This will ensure that the wiring harness has good reliability, safety and maintenance in the process of use, and reduce the occurrence of failures and accidents. At the same time, when manufacturing and repairing the wiring harness, quality control and inspection should also be carried out in strict accordance with the requirements of the standard to ensure that the quality of the wiring harness meets the standard requirements.

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